Category Archives: lens

Acoustic Lenses Show Sound Can Be Focused Like Light

Acoustic lenses are remarkable devices that just got cooler. A recent presentation at SIGGRAPH 2019 showed that with the help of 3D printing, it is possible to build the acoustic equivalent of optical devices. That is to say, configurations that redirect or focus sound waves. One fascinating demonstration worked like …read more

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Posted in 3d printed, 3d Printer hacks, acoustic, acoustic lens, lens, musical hacks, research, sonic | Leave a comment

3D-Printed Extension for Extreme Macro Photography Includes Lens Electronic Control

Macro photography — the art of taking pictures of tiny things — can be an expensive pastime. Good lenses aren’t cheap, and greater magnification inflates the price even further. One way to release a bit more performance from your optics comes in the form of an extension tube, which mounts …read more

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Expensive Sony Lens Repair Reveals Shims & Shifts

The photographic hire company Lensrentals had a $2k Sony FE 135mm f1.8 GM camera lens returned with a problem: it was having issues focusing. So, they decided to do the obvious thing and take it apart. It’s a fascinating insight into some of the engineering that goes into a high-end …read more

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Posted in digital camera, digital cameras hacks, lens, repair hacks, SLR | Leave a comment

Hold 3500 Volts Up To Your Eye

Old military equipment can sometimes be found in places like flea markets and eBay for pennies, often because people don’t always know what they have. While [tsbrownie] knew exactly what he was getting when he ordered this mystery device, we’re not sure we could say the same thing if we …read more

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Posted in classic hacks, high voltage, infrared, lens, night vision, PVC, tube | Leave a comment

Motorized Lens Controller Techs Up Your Webcam

If you’re familiar with the DSLR camera market, you’d know that modern lenses are works of technological art. Crammed full of motors and delicate electronic assemblies, they’re bursting with features such as autofocus, optical stabilization and zoom. [Saulius Lukse] has been experimenting with motorized lenses for webcam applications, and has …read more

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Creating Lenses On Cheap CNC Machines

There are a lot of CNC machines sitting around in basements and garages, but we haven’t seen anything like this. It’s making lenses using a standard CNC machine and a lot of elbow grease.

The process of making a lens with a CNC machine begins by surfacing a waste board …read more

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Artistic Images Made With Water Lens

It’s said that beauty and art can be found anywhere, as long as you look for it. The latest art project from [dmitry] both looks in unassuming places for that beauty, and projects what it sees for everyone to view. Like most of his projects, it’s able to produce its artwork in a very unconventional way. This particular project uses water as a lens, and by heating and cooling the water it produces a changing image.

The art installation uses a Peltier cooler to periodically freeze the water that’s being used as a lens. When light is projected through the …read more

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Posted in arduino, art, cooler, ice, lens, peltier, projection, Raspberry Pi, water | Leave a comment

10,000-Year-Old Camera Lens Takes Striking Pictures

The first photograph was taken sometime in the early 1800s, and through almost two centuries of development we’ve advanced through black-and-white, the video camera, and even high-speed cameras that can take thousands of frames per second. [Mathieu Stern] took a step back from all of the technological progress of the past two hundred years, though, and found a lens for his camera hidden in the glacial ice of Iceland.

Ice in this part of the world has been purified over the course of 10,000 years, and [Mathieu] realized that with this purity the ice could be formed into a workable …read more

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Posted in 3d printer, camera, digital cameras hacks, glacier, ice, iceberg, lens, melt, photo, photography, picture | Leave a comment

A Canon Lens Adapter for the Game Boy Camera

Released in 1998, the Game Boy camera was a bit ahead of its time. This specialized Game Boy cartridge featured a 128×128 pixel CMOS sensor and took 4-color greyscale photos. The camera even rotated, allowing for selfies years before that word existed.

The fixed lens on this camera meant no zoom was possible. [Bastiaan] decided to address this shortcoming by building a Canon EF Lens Mount. The resulting build looks hilarious, but actually takes some interesting photos.

[Bastiaan] designed the mount using Rhino 3D, and printed it out on a Monoprice 3D printer. After some light disassembly, the mount can …read more

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Posted in lens, Nintendo Game Boy Hacks, photography | Leave a comment

Shutter Bug Goes Extreme with Scratch-Built Film Camera

Should a camera build start with a sand mold and molten aluminum? That’s the route [CroppedCamera] took with this thoroughly impressive camera project.

When we think of cameras these days, chances are we picture the ones that live inside the phones in our pockets. They’re the go-to image capture devices for most of us, but even for the more photographically advanced among us, when a more capable camera is called for, it’s usually an off-the-shelf DSLR from Canon, Nikon, or the like. Where do hand-built cameras fall in today’s photography world? They’re a great way to add a film option …read more

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Posted in lathe, lens, machining, metalworking, mill, misc hacks, optics, petrobond, shutter | Leave a comment